OpenCV1_OtsuBinarization.py

import cv2 as cv
import numpy as np
from matplotlib import pyplot as plt

img=cv.imread('D:\otsu.jpg')
cv.imshow('park',img)

#gloabl thresholding
ret1,th1=cv.threshold(img,150,255,cv.THRESH_BINARY)

#OTSU Thresholding
ret2,th2=cv.threshold(img,0,255,cv.THRESH_BINARY+cv.THRESH_OTSU)

'''#OTSU Thresholding after Gaussian Filtering
blur=cv.GaussianBlur(img,(5,5),0)
ret3,th3=cv.threshold(blur,0,255,cv.THRESH_BINARY+cv.THRESH_OTSU)
'''


cv.imwrite('gloabal thresh(v=150).jpg,th1)
cv.imwrite('otsu binarization.jpg',th2)
           
cv.imshow('gloabal thresh(v=150)',th1)
cv.imshow('otsu binarization',th2)
cv.imshow('original',img)
if cv.waitKey(0) & 0*ff==27:
    cv.destroyAllWindows()